Luminaire



FIG. 1 is a perspective view of a luminaire showing our new design;

FIG. 2 is a front elevational view thereof, the right, left and rear elevational views being substantially identical thereto;

FIG. 3 is a bottom view thereof; and,

FIG. 4 is a top plan view thereof.

The broken line showings of FIGS. 1, 2, and 4 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a luminaire, as shown and described. 